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Химическая и лесная промышленность

Surface Activation Of Carbon Fibers. Using gas-fluorination, Plasma treatment and chemical procedures

Формат:      Страниц 100
     мягкая обложка
Md. M. I.K.    
Книга по Требованию    
1923 руб
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Surface roughness were seen by the help of Scanning electron microscopy (SEM). XPS, Zeta-potential measurements revealed changes in surface chemistry of treated carbon fibers. The development of composites using carbon fibers as the reinforcement requires surface activated carbon fibers with a durable surface composition. The lower contact angle proved the surface hydrophilicity of treated carbon fiber. In this work, sized polyacrylonitrile (PAN)-based carbon ? bers were modi? ed by Oxy- Plasma treatment, Oxy- fluorination, and Nitric acid treatment in order to improve the interaction between carbon ? ber surface and matrix. The higher tensile strength of activated carbon fibers gave the assurance of more load bearing capacity of carbon fibers and also the acceptability of activation process. The effect of different surface treatments was observed by means of contact angle, surface free energy measurement.
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I is firs show ha he i crease of elec ric po e ials i he oral cavi y a pa ie s wi h impla s depe ds o he ype of impla s coverage a d ca be used as prog osis cri erio of os eoi egra io . I is se ha duri g de al impla a io regardless of ype of impla s surface a pa ie s have he i crease of ferme ac ivi y of he mixed saliva, speeds of saliva io , decli e of aerobic oxidiza io a d i crease of a aerobic glykolis i ey rophyls of peripheral blood. I is proved, ha he use of he offered medical-prophylac ic complex i he period of pos impla a io is i s rume al i dimi ishme of des ruc ive cha ges i a alveolar bo e, ormaliza io of limi ed pro eolysis a d free-radical lipide oxida io of he mixed saliva, speed of saliva io a d ormaliza io of ac ivi y of lak a - a d sukcy a dehydroge asis i ey rophyls of peripheral blood, ha reduces he risk of complica io s origi . Key words: impla , hydroxyapa i e, Collapa -L, Erbisol, saliva io , biopo e ial, bo y issue of he jaws, de ures. ПЕРЕЛІК УМОВНИХ СКОРОЧЕНЬ АТА – антитриптична активність АОА – антиокислювальна активність АО – альвеолярний відросток ГА - гідроксиапатит ГАП - гідроксиапатитове покриття ЛДГ - лактатдегідрогеназа мВ - мілівольт CТР – спрямована тканинна регенерація ОПТГ - ортопантомограма СДГ - сукцинатдегідрогеназа ТПА – трипсиноподібна активність Автор висловлює щиру подяку співробітникам зазначених установ за допомогу в проведенні досліджень.

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